Car truck



Dec. 27, 1927. 1,654,326

w. E. FOWLER, JR

CAR TRUCK.

Filed Feb. 19, 1925 3 Sheets-Sheet l I INVENTO/Z' w/r/vEssEs "3 b. Mg45%? (I X EM MAM Dec. 27, 1927.

- vm E;FOVVLER.JR

CAR TRUCK Filed Feb. l9, 1925 3 Sheets-Sheet 2 //V VE/V TOR S l I Dec.27, 1927. 1,654,326

W. E. FOWLER, JR

CAR TRUCK Patented Dec. 27, 1927.

V STA res PATENT orrrcs.

WILLIAM FOWLER, JR., OF MOUNT LEBANON, PENNSYLVANIA.

k can TRUCK.

Application filed ,February 18,, 1925... -Seria1No.-l0;218.

The invention described herein relates to 1 .of wrought metal and,integrallone with the other at their ends, and the strut forming thebolster columns formed of cast metal.

The inventionis hereinafter more fully de-;

scribed and -zclaimed.

In the accompany-ingvdrawings forming a part .of this--specification,Fig. 1 shows the improved frame in side ele.vation-and having endssecured :to the axle boxes; Fig. :2- is a top plan view showing apreferred con struction of the-.top-of an axle :box for the attachmentof the endsoi the'gtruss; Fig. 3 is a sectional elevation on a planeindicated by the line III I II, Fig. 2; Figh 1- is .a sec- ...ti-onalelevation on a plane indicated by the line JV IV Fig. 1; Fig. 5 showsaside and and elevation of .a blank from which the compression andtension =members of the I trussshown-in l are formed; Fig. 6 is a tv-iewsimilar to F l illustrating a pref terred construction of truss-shapedside .gf uame; 7 is a sectional view on a plane indicated by the lineV1I-V1L Fig. 6; and Figs. 8 and 9 illustrate successive steps in theformation of the truss.

In the practice of the invention a rolled bar preferably H-shaped incross section, the flanges and .web being. :prei erably of nut vform"thickness asshoW-n in Fig. 5, is so cut.

.or slotted for a suitable.distance along its median line as to tonmlegs.a and b. vThe cutting or slotting does .not extend the .en-

40 tire length of the bar, .as it is desired gtlll-t,

the end portions of the legs should be in- .itegral 1one with the other.When forming the truss from an H-shaped section, it isv preferlzedtoremove the web ,portion 0 for the desired distance along the bar.

After-the ha r slotted as @described, it is suitably: heated and bysuitable mechanism.

one of the legs as a, is upset longitudinally to reduce its length andcause as-bowing out of the other leg. .The extent of upsetting will ofcourse be .dependent upon the desired "depth of :theitnu'ss.

, The {strut of -;the [truss [is next placed in position, said strutbeing fonmed by a boxlike-casting .into which ends of the bolster andthe spring "plank of the t ash project.

The sides of thecasting form thecolumns 1 for guiding the bolster in itsvertical movements and also prevent any lateral movement thereof, andare connected by the top and bottom portions 2 and 3 of theoasting, andhence each column. will be rein-- forced as against lateral strains bythe other column. The bottom member of the castin forms the support forthe spring plank .ot the truck.

The outer faces of the upper and lower= portions of the castingareprovided with spaced ribs or checks 5 and .6 forminglateral hearings forthe compression r3116]. tension members 7 and 8 of the truss. Suitableof the box or strut longitudinally of the truss, as for example, in .theconstruction shown in Fig. 1, the upper portion of the box s .rlveted tothe compression member .ra nd suitable stops 8* arersecured to the ten-S1011 member .on oppositesides of the casting. The depth .01 thetruss,=i. -e., the greatest distance between the tension andcompresmeans are employed to prevent movement 1 prevent the box frommoving laterally of the truss, ribs or checks 10 are formed on the .topof the box, said ribs being spaced suchdistancesapart that the ends ofthe truss can be seated between them, and between these ribs 10, atransverse rib 11 is formed, said rib being adapted to extend into aseat '12 formed in the underside of theends of the truss resting on thebox. In

shown, the bracket is provided with a seat 14 in which the tensionmember is held by caps '15 riveted to the brackets. The boxes aresecured to the'ends ofthe truss by rivets 16 which preferably passthrough the webs c and also the ribs 11 on the boxes.

relatively large or a multiplicity of smaller rivets employed. In theconstruction shown in Figs. 6, 7, and S, provision is made for avoidingthe use of rivets where they would be subjected to shearing action.

,In forming the truss member, a bar preferably E-"l shaped in crosssection isso cut or slotted on its median line that thelegs a and 5formed by cutting or slotting, are integrally connected not only attheir ends, but also at a plurality of points intermediate means of asaw or other mechanism, two of the connectingsections, as (Z and f, aresevered, as indicated at w, from the leg 6 which in the completed trusswill form the tension member, and the intermediate section 6 is severedfromthe leg at, as indicated at 3 The leg a is next upsetthereby bowingthe leg Z). The strut is formed by two box-like sections, the sides 1 ofwhich, when the sections are placed in position, form the columnsemployed for laterally supporting and guiding the bolster. At theirupper and 7 lower ends, the box sections are provided with ribs 16 and17 adapted to bear against the edges of the compression and tensionmembers, 7 and 8, and each of the sections are so notched in line withthe Vertical sides and as'indicated at 18, for the reception of f theinwardly projecting lugs (Z and f on the compression member, as shown inFigs. 6 and 7. The upper ends of the box sections are also providedwithfingers 19 adapted to purpose, and are held in such position byrlvets 18 passing through flanges 21 on the r Y, column portions of thesection. The frame forming the strut may be made of steel or malleablecast-iron, as best suited to meet the shocks and strains to which theframe would be subjected in use.

In a truck embodying the improvements described and claimed herein,'theload-carrying bolster is supported by the tension member the ends ofwhich rest upon" and are secured to the axle boxes. The load on thetension membertends to deform such mem-- prcssion member.

her and draw the axle boxes and wheelsytowards each other. Such actionis prevented by the compression member, which has itsv ends connected tothe end of the tension member and to the axle boxes; In the practice ofthe invention, it is preferred that the positions of the tension memberon opposite sides of the column casting or strut should be at such anangle to the correspondingly located portion of the compression memberand the ends of the truss be'so secured to the axle boxes, that thelines of stress of the tension and compressionmembers will intersect ina vertical plane coin-' cidlng with the axes of the axles as shown inFigs. 1 and 6 and will therefore so neutralize each other that therewill not be any turning movement at the end of the truss. theirends, asindicated at (Z, c and By' It will be observed that in the constructionshown in Fig. 6 the strut or frameis held former on integral portions ofthe truss,

and that the latter is tied to the box by fingers integral withthelatter.

I claim herein as my invention:

1. A side frame for trucks consisting of tension and compressionmembersrformed of wrought metal and having their ends integrallyconnected and a cast metal frame interposed between the tension andcompression members and forming the columns and springplank support of atruck in combination with axle boxes provided with means engaging theunited ends of the tension and compression members transversely andlongitudinally, and means for tying the boxes to the tension member. i vV '2. A side frame for trucks having'in combination tension andcompressionmembers, each provided with an inwardly projecting lug, astrut consisting of a frame formed of complementary sections, eachsection being provided with means for engaging the lugs on the tensionand compression members, and means for holding such sections inengagement with the lugs. .7

v 3. A side frame for trucks having in combination therewith tension andcompression members, a strut consisting of a frameadapted to formbolster columns and spring plank support of a truck, and means integralwith the compression member adapted to so engage the strut as to preventmovement of the strut laterally and longitudinally of the com 4. A sideframe for trucks bination tension and compression members, thecompression member being provided with inwardly projecting lugs and thetension member with an inwardly'projecting having in com lugintermediate horizontally of the lugs on v the compression member, astrut consisting of a frame adapted to form the bolster column and aspring plank support of a truck, and provided with sockets for thereception of the lugs on the compression and tension members.

5. A side frame for trucks having in combination tension and compressionmembers, the compression member being provided with inwardly projectinglugs and the tension member provided with an inwardly projecting lugintermediate horizontally of the.

lugs on the compression member, a strut consisting of a frame adapted toform the bolster column and a spring plank support of a truck andprovided with sockets for the reception of the lugs on thecompression'and tension members, and fingers on the strut adapted tooverlap the compression member.

6. A car truck having in combination a pair of side frames whichcomprise a bar of substantially H-shape slotted transversely of its webportion and expanded to constitute tension and compression membersjoined integrally at their respective ends, a strut consisting of aframe adapted to form the bolster columns and spring plank supportdisposed between and engaged by said tension and compression members andaxle boxes secured to the ends of said frame for journalling a pluralityof wheel axles.

In testimony whereof, I

my hand.

WILLIAM E. FOWLER, JR.

have hereunto set

